We have just tried to cut some 3/16 ally for the first time with TMX hyp 105.
We have had really good results so far on 20mm mild steel and 1.5 and 2mm mild steel. We had a job come in to cut some bezels for vcr sreen from 3/16 ally. We did the set up for height control etc as per hypertherm cut sheets and set to cut, pierced ok, then shield started to drag on sheet as if the HC was not working. We then reset and set the cut height to 0.12 (should be 0.06) to see if that made a difference. This time we cut the piece out but very poor cut apart from lead in and first inch or so of cut, dross on top and bottom, 45 deg bevel on some sides. Height control seemed to be operating during cut. we then played with cut speeds but no improvement.
Does any one have any ideas. we are using 65A shielded consumables and water bed.